Your computer and the installed programs are saving reusable data in a cache file (temporary memory) on the harddisk, in order to approach it in an efficient way. After a while it is possible that the data get compromised and a program starts working in an unexpected way. Cleaning the cache will solve this problem. CacheCleaner2 helps with this job. You can choose which apps will be cleaned and if they should be restarted.

CheckSite
monitoring websites

CheckSite is a simple and highly intuitive OS X app created to help anyone keep a close eye on any website's Internet availability.
While using CheckSite, you will be able to customize the interval between website checks.
Additionally, from CheckSite's Preferences window, users will also be able to easily hide the app's menu icon and to toggle the sound effects on and off.

SilentStartup
mute the startup sound

With SilentStartup it's easy to (temporary) mute the startup sound. It's also possible to mute the sound after starting up. You can then manually unmute it at any time. This comes in handy when you use the automatic startup facility and don't want the sound to disturb you.